WO2014131783A1

WO2014131783A1 - Multilayer body and method for producing a multilayer body

Info

Publication number: WO2014131783A1
Application number: PCT/EP2014/053689
Authority: WO
Inventors: Walter Fix; Manfred Walter; Wayne Robert Tompkin; Andreas Schilling; Klaus Schmidt; Jürgen Metzger
Original assignee: Polyic Gmbh & Co. Kg; Leonhard Kurz Stiftung & Co. Kg; Ovd Kinegram Ag
Priority date: 2013-02-26
Filing date: 2014-02-26
Publication date: 2014-09-04
Also published as: TW201447770A; EP2961617B8; CN105163951A; EP2961617B1; CN105163951B; DE102013101881A1; EP2961617A1; ES2672545T3; US20160004950A1; US9779350B2; TWI599961B

Abstract

The invention relates to a multilayer body comprising a support and a layer which is arranged on the support and comprises an electrically conductive material in a specific arrangement. The multilayer body comprises an information region and a background region (18) which are galvanically separated from each other. Each information region is equipped with a first zone (10) which comprises an electrically conductive material, and the electrically conductive material of the first zones is connected in a conductive manner over the totality of the first zones. Each background region is equipped with a plurality of second zones which comprise an electrically conductive material and which are galvanically separated from one another. Each of the first zones (10) preferably takes up a surface area which is larger than each of the second zones by a factor of at least five. The electrically conductive material is preferably provided with an average surface coverage which varies by less than 25% over all the information regions and the background regions (18). In this manner, a homogenous appearance of the multilayer body is provided, and information provided in the information region by means of the shape, size, and/or alignment of the first zone is not visible without an aid and therefore cannot be copied.

Description

Multilayer body and method for producing a multilayer body

The invention relates to a multilayer body and a method for

Producing a multilayer body.

In particular, it concerns such a multilayer body in which an information which is capacitively readable is encoded by an arrangement of electrically conductive material in a layer on a carrier.

The multilayer body can be designed in particular in the form of a transfer film, a laminating film or a security thread. Of the

Multi-layer bodies can be applied to or integrated into a multiplicity of different substrates, in particular banknotes, credit card identity documents, passports, tickets, travel and admission tickets, travel documents, product packaging, tags, playing cards, etc. Thus, it is known from WO 201 1/154524 A1, on a substrate, which may comprise paper, but also plastic, to provide a plurality of electrically conductive regions (so-called coupling surfaces), which in one

Embodiment are all electrically coupled together via interconnects. The size of the electrically conductive areas is selected to match the measuring fields of a readout device. This is in particular a readout device with a touchpad functionality. When placing the substrate with the electrically conductive areas, there is a capacitive coupling between these electrically conductive areas and the measuring fields. This achieves the same effect as when a finger approaches such a measurement field. Due to the electrically conductive areas thus the

Properties of fingertips modeled.

It is disclosed in WO 2012/038434 A1 to use such a substrate with electrically conductive regions located thereon in a banknote.

Whenever the coding of information by electrically conductive areas is to serve as a safety function, there is the problem that the coding should not be readily apparent; it should be able to be read out exclusively with the aid of the read-out device in question, but should not be recognizable on the basis of pure viewing. As soon as the coding is visually recognizable, the danger of an easy replication would be given.

In the prior art, for this reason, a larger area of

Substrate containing the electrically conductive areas, or the entire substrate, covered with an opaque (non-transparent) cover layer.

Especially with security elements and documents, by a

Security function is to be provided, but it is desirable if visually made aware of the safety function. Due to the opaque cover layer, there are limitations in this regard. It is therefore the object of the present invention to show a way, as is ensured in a corresponding multi-layer body without an opaque cover layer that the coding is still not visually recognizable. The object is achieved in a first aspect by a multi-layer body with the features according to claim 1, associated with a

Subject, such as a value document or valuable object, according to

Claim 24, a banknote according to claim 25 and a packaging or packaged goods according to claim 26 and in a second aspect by a method having the features according to claim 27 solved.

The multilayer body according to the invention thus has a carrier

(In particular a support film) and a layer disposed thereon, which comprises electrically conductive material in such an arrangement that at least one information area and at least one background area are provided, wherein information area and background area

are galvanically isolated from each other (especially though they are arranged in the same layer which is or may be the only layer), wherein - in each information area a first zone of electrically conductive material is provided, over their entirety, their electrically conductive material is conductively connected is, and where

- In each background area with a plurality of second zones

electrically conductive material is provided, wherein the second zones are galvanically separated from each other.

In the multilayer body according to the invention, a neutral background area is thus additionally provided, so that the electrically conductive material is not only provided in the at least one information area; The electrically conductive material of the background area can thus serve to distract a viewer from the information area. It is preferably provided that each first zone occupies a larger area than each of the second zones by a factor of at least two, preferably at least five, particularly preferably at least ten, very particularly preferably at least 30.

It can be ensured in particular by this measure that the neutral background area does not carry any information that can be detected by capacitive readout. However, it may be optical information, in particular in the form of a decorative element and / or in the form of an optical

Security feature such as diffractive or refractive structures

provide.

It is particularly preferably provided that the electrically conductive material is provided with a central area occupancy that over the

Information areas and the background areas varies by less than 25%, preferably by less than 10% varied, more preferably by less than 5% varied, the average area occupancy is calculated on sub-areas, each having the same predetermined size, the 500 μιτι times 500 μηη, 300 μηη times 300 μητι, 250 μηη times 250 μπτι, 200 μηη times 200 μηη, 150 μιτι times 150 μιτι or 100 μιτι times 100 μιτι amounts.

In other words, a selected first subarea with the dimensions of e.g. 200 μιτι times 200 μιτι compared to any other sub-area by the said percentage. Lies

For example, if the average area occupancy in the first sub-area is 60%, then a variation would be 25% of the 60% for a quarter of the 60%, ie 15 percentage points. In other words, starting from an average area occupancy in the first partial area of 60% in all other partial areas, the average area occupancy could be between 45% (ie 60% minus 15%) and 75% (ie 60% plus 15%). The average area occupation as such is independent of the exact microscopic design. If the conditions mentioned above are met, the homogeneity of each information area with each background area produces a homogeneous impression of the multilayer body

Dimension of 300 μιτι is about the resolution limit of the human eye. Here, a distance of about 30 cm between the object to be resolved and the eye of the observer is required. A difference between different surface assignments can only be seen if significantly larger partial areas in the area allocation differ from one another. In one case, a consistent transparency,

in particular transmissivity, given, namely the ability to light

pass. In another case (especially metallic

Materials as electrically conductive material), the material reflects the light, wherein under the above conditions for homogeneous reflective

Properties is taken care of.

In both cases, the homogeneous overall impression ensures that the information areas can not be visually differentiated from the background areas, so that a visual readout of the code is not possible correspondingly; preferably one does not even recognize that coding could be included at all.

In the first case, the touch panel device is preferably overall translucent or transparent, in particular it should have a degree of transparency of at least 50%, preferably of at least 80%, more preferably of at least 90% and most preferably of at least 95%. This can be made possible by the fact that printed conductors are used which have a width from the range of 1 μm to 40 μm, preferably from the range of 5 μm to 25 μm, and in particular are arranged so as to be suitable spaced from each other in a pattern, so that the to the desired

Transmission associated area occupation with opaque tracks set. In particular, in each first zone of the electrically conductive material is a plurality of such, in particular crosslinked, printed conductors formed be. The arrangement in patterns ensures, in particular, a reliable galvanic connection of the printed conductors. In each

Background area are preferably formed from the conductive material according to conductor track parts, which have a width in the range of 1 μιτι to 40 μιτι, preferably from the range of 5 μιτι to 25 μιτι have. In order to form in the background area the said second zones with a smaller area than the first zone, the individual conductor track parts are galvanically separated from conductor track parts of another second zone in the respective one

Background area separated by a gap of a length which is between 50% and 200% of the width of the conductor track parts.

When selecting the tracks with such a width and in particular such suitable distances, the individual tracks are not visible by the human eye; the effect of providing the traces and trace parts with such parameters is merely that the overall degree of transparency is slightly reduced compared to a purely transparent material. It is thus provided by the provision of such traces an electrical functionality without this would be immediately apparent. In particular, even by the small length of the gap between the individual conductor track parts ensures that even their interruption as such can not be resolved by a human eye.

Preferably, it is provided in this embodiment that the interconnects from each information area have the same first width and the

Conductor parts from each background region have the same second width, wherein the first and second widths differ from one another by at most 30% of the respectively greater value, they are preferably even the same. By this measure, it is ensured in a particularly simple manner that the average area occupation is essentially the same. What applies to the width applies in a similar way to the spacing of the tracks. In a regular trace pattern, the spacing at between 50 μηη and 300 μητι, preferably between 120 μηη and 250 μηη lie. For an irregular pattern, the mean distance is on this scale.

Especially good conductor track parts can be provided by providing

Train interruptions in a regular circuit pattern. As a result, cross-shaped structures are provided in each case. More generally, two trace portions in the second zones overlap each other.

So that the feature of the galvanic separation of information area and background area is fulfilled in a particularly simple manner even when the feature of only slightly varying average area occupation is realized, printed conductors of an information area are each assigned to a printed conductor part of a background area from which they are separated by a gap of a width which is between half and ten times the width of the tracks.

In the sense of achieving a homogeneous reflective effect of

Multilayer body should its average surface coverage with the electrically conductive, especially metallic material tend to be higher. Although from a mean surface coverage of more than 20%, preferably more than 25%, a reflective effect is achieved, it is desirable to have an average area coverage of 50% or more, preferably even an almost full area coverage of electrically conductive material is provided with only 15%, preferably 10%, more preferably 5% free (ie

in particular transparent, non-conductive) areas.

A related arrangement of electrically conductive material may in particular include that every other zone is covered over its entire area with electrically conductive material.

The first zones, which are substantially larger than the second zones, can in turn be covered over the entire surface with electrically conductive material be. Alternatively, it is possible for this that in the first zones in each case a plurality of partial areas are covered over the entire surface with electrically conductive material, which are galvanically coupled to one another via webs. So can the respective

Subareas in the first zone are the same size and have the same shape as the second zones; the only difference is that the second zones are galvanically completely separated, and that the

corresponding closed portions are coupled together in the first zones via said webs. In this way one becomes

Impression of a particular homogeneity achieved.

In order to delineate the information area from the background area in a manner not directly visible, a closed area of a second zone may be separated from a closed area or partial area of a first zone by a gap which is not wider than 150 μm. These

Gap width may be the width of the spacing of the second zones in the

Background area and also the width of the spacing of the

closed areas in the first zone, ignoring the bars. Since the tracks themselves and the interruptions between adjacent tracks without technical aids in compliance with the above

Parameter specifications are not resolvable by the naked eye, it is particularly not mandatory that the background area and the

Information area are formed according to an identical pattern.

In particular, it may be provided that areal, line-shaped and / or punctiform areas without conductive material are formed in the information area according to a first pattern and in the background area according to a second pattern different from the first pattern. Such a first and / or second pattern can be formed, in particular, by a statistical distribution of small, transparent and non-conductive point-shaped regions. Preferably, then the background area and the information area continue to have substantially the same area occupancy with the electric conductive Matenal. This ensures a homogeneous visual impression.

In a preferred embodiment of the multilayer body in all alternatives mentioned so far is a combination with optical

Security features, in particular visually visible optical

Security features provided, which is made aware of the safety function. For example, For example, these optical security features can be optically variable security features whose optical properties change depending on the viewing angle and / or the illumination direction. For decorative applications, such as packaging, it is

desirable if by an attractive, in particular visual

Design the corresponding product is shown particularly advantageous and / or striking. This applies in particular to security elements which are used for the protection against counterfeiting of commercial products, e.g. to emphasize by means of the security element, the brand for certain products, such as pharmaceutical products or cigarettes, especially. In particular, if the electrically conductive material is formed over the entire area in the second zones and the first zones or partial areas of the first zones, the electrically conductive material can simultaneously have a further functionality as a reflection layer for optical security features, such as e.g. provide diffractive or refractive structures or for three-layer Fabry-Perot thin-film elements with color change effect. It is thus preferably provided that an optical security feature is formed in the electrically conductive material in at least one closed region or partial region and preferably several such regions. Thus, the electrically conductive material is part of a layer structure (constitutes a layer) of an optical

Security feature and / or provides a function of such an optical security feature. The security feature preferably has one

Microstructure in the form of a linear or crossed sine or rectangular diffraction grating, a diffraction structure zero order, a 2D / 3D or 3D hologram, a kinegram ^®, a trust Seal ^®, a colored or achromatic blazed grating, an isotropic or anisotropic matt structure, a microlens structure, a macrostructure, a thin film color change system, such as a Fabry-Perot thin film system or the like. The linear or crossed sine or rectangular diffraction grating may in particular have a spatial frequency in the range from 100 lines / millimeter to 3000 lines / millimeter.

In the microstructure may also be preferably provided that a

Periodicity is given, in which the period is smaller than a wavelength from the wavelength range of visible light.

Such microstructures may in particular be embossed in a lacquer layer on which in turn the electrically conductive material layer is applied.

A thin film color change system (such as a Fabry-Perot thin film system) consists of a series of several thin, especially transparent, layers whose thickness is e.g. each half or e.g. is a quarter of a wavelength in the visible light wavelength range, i. H. that the so-called K / 2 or λ / 4 condition is fulfilled. If this is realized, then these thin-film color change systems are colored, whereby the color changes with a change of the viewing angle.

Thus, if the further functionality of the electrically conductive material is provided (such as a reflective layer as shown above), then it is possible that the multilayer body is detected as including a security function, and then the optically variable device provides a recognizable optically variable effect, e.g. in the form of a particular visual second piece of information.

The microstructure can have largely the same structural parameters over its entire area as, for example, structure depth, azimuth angle, relief shape or these structure parameters or the type of microstructure can vary over the surface area of the microstructure and thereby form a motif. The motif can be designed as a single image or as an endless motif pattern. The motif or the microstructure can be in the register, ie

be adapted to the regions or subregions of the electrically conductive material or independently thereof, i. do not accurately form a pattern. The positional accuracy between the areas or

Subregions of the electrically conductive material and the microstructure usually varies between +/- 1 mm in the x and y direction and +/- 0 mm. That one unrecognizable to the human eye without aids

Coding by the arrangement of the electrically conductive material

is obscured by the optically variable effect. The area occupation with the electrically conductive material determines the

Visibility and / or recognizability of the optical security features when the electrically conductive material as a reflective layer for optical

Security features serves. If the area occupancy is low, then the electrically conductive material is only in a small area occupancy than

Reflection layer for the optical security feature before and

corresponding security feature is comparatively less brilliant or clear or less visible contrast. With increasing area occupancy of the electrically conductive material serving as a reflection layer, the brilliance, the contrast and the recognizability of these optical components increase

Security features. To increase the visibility of the optical

Security features may be provided in addition to the electrically conductive layer an additional, in particular full-surface, non-conductive reflection layer, in particular of non-conductive materials with a high refractive index, so-called HRI materials (HRI = High Refractive Index).

The regions or subregions of the electrically conductive material can also cooperate advantageously with other, in particular decorative, layers. For example, additional color layers or effect layers above and / or below the electrically conductive material may be such be provided that in combination with the electrically conductive material results in a characteristic design or a characteristic motif, which, however, substantially obscures the actual arrangement of the electrically conductive material as coding. In particular, the color layers may be formed so that by a generated thereby

Distraction or optical illusion the concrete shape of the electrically conductive material is just not visually recognizable. The additional

Color layers or effect layers can also contain optically variable pigments in a binder, so-called OVI (OVI = Optically Variable Inks). These individual pigments may, for example, have diffractive structures and / or reflection layers and / or Fabry-Perot thin-film systems and thereby produce characteristic optical effects. The color layers or effect layers may additionally or alternatively comprise further ingredients which are in particular machine-readable. For example, these may be magnetic pigments or phosphorescent or

be luminescent substances.

Preferably, a microstructure is formed as an optical security element with the electrically conductive material as a reflection layer by molding the microstructure into a preferably transparent or transparent colored lacquer by means of stamping tools and then this

Microstructure coated with a thin metal layer,

is steamed in particular. By means of known structuring techniques such as laser ablation, etching method, washcoat method, mechanical removal or exposure method, the electrically conductive material is subsequently removed on a surface area basis, whereby the final area occupancy is defined. Subsequently, further lacquer layers and / or adhesive layers can be applied to the microstructure, in particular printed. For example, a heat-sealable adhesive can be applied in order to be able to apply the multilayer body to a substrate by means of hot stamping. In a particularly preferred embodiment of this embodiment, a first information is coded by the position, size, orientation and shape of the first zone (the coding relates to the shape of measuring fields of a read-out device), and the optically variable device becomes a visual second information provided that either partially or completely coincides with the first information or this first

Information supplemented to a total information. In the case of at least partial agreement, the information can be read out with the read-out device and thereby confirm that the hard-to-falsify security feature of the arrangement of the electrically conductive material is present in the said code for providing the first information, and the information read out is then particularly easy correctly verifiable. In addition to overall information, this may also be the case, in particular if, for example, different graphic motif parts or word parts are provided by the first information and the second information, also different associated graphic motifs, words or phrases. Likewise, the second information may also be in the graphical, non-verbal representation of an object whose name or description is then provided by the first information, in verbal form. Likewise, the first information may indicate a source in which the visual second information is accessible; thus, the page of a book showing such an image may be referenced, or, for example, the first information may refer to an Internet address (web page) where the visual second information is reproduced or described by third information.

Optionally, further information carriers, such as barcodes or RFID chips, may be provided in the multilayer body, by means of which second or third and fourth information, which are in such a relationship to the first information provided by the coding as an alternative or in addition to an optically variable device, is provided, that this

Security feature can be checked. In a preferred embodiment of all aspects of the invention heretofore mentioned, a background area surrounds all

Information areas or at least all first zones completely. In this way it is avoided that an information area or a first zone is located at an edge where he / she might be easily identifiable. The background area also ensures particularly good protection of the information area. If the multilayer body is slightly larger than an input surface of the reader, it can be slightly wider

Edge area, which is designed as a background area, be taken to ensure that the multi-layer body only arbitrarily, especially with high tolerance must be placed on the input device of the reader and that no precise instructions must be followed. This is also advantageous in cases in which the reader is placed on the multilayer body, for example, in a larger package.

In a preferred embodiment there is exactly one

Information area. This may have a simple shape whose position and / or orientation provides first information. A single

However, the information area can also be provided by a complex form, for example by the formation of an always identical basic area from which several subareas extend according to a coding.

For example, a surface may be provided for the information area, which comprises three strips arranged directly beneath one another (in particular of the same length). The middle strip corresponds to the said basic area and is covered as a whole by the electrically conductive material (in one of the above-mentioned patterns). The two strip-shaped areas next to the middle strip are divided into a number of (in particular equal) partial areas. An encoding is now carried out in that each of the sub-areas of the adjacent strip-shaped areas encodes a bit, wherein an occupancy of the subarea with electrically conductive material stands for a logical one and a non-occupancy with electrically conductive material for a logical zero stands. For example, the sequence of ones and zeros can be easily read in that, from left to right, first the occupancy or non-occupancy of the partial areas in the upper strip-shaped area is detected and subsequently the occupancy or non-occupancy in the lower strip-like area is detected.

In one preferred embodiment, an information area can also comprise a plurality of first zones, which are galvanically coupled to one another by at least one conductor track. In this case, by the

Whole of the first zones provided a coding, wherein the shape, size, orientation and / or position or even distance from each other can provide the coding. Due to the galvanic coupling of the first zones, an effect by placing the multi-layer body on the

Reading device can be achieved, as if several fingers would be placed simultaneously with their fingertips. The advantage of the multiple zones is that coded information can be read particularly easily by the read-out device, since the readout device only needs to detect the relative positions of the individual zones relative to each other instead of the absolute position of a given individual zone. In this way it is achieved that an operator does not have to place the multi-layer body exactly in a possible desired position on the read-out device and nevertheless a reliable readout is ensured.

In all the above-mentioned embodiments, at least one of the group of silver, copper, gold, aluminum, chromium, mixtures and / or alloys of the aforementioned materials, a conductive paste, polyaniline and polythiophene is selected as the electrically conductive material. Such materials can be applied particularly well and / or structure very well. For example, a metal layer in a layer thickness of 10 nm to 5 μm, preferably 20 nm and 100 nm, can be applied to the substrate or a layer, for example a relief layer or replication layer, and patterned. The application can by means of vapor deposition, sputtering and any other application procedure. Structuring preferably takes place by means of mechanical removal, laser ablation, an etching process or by means of a washing process. One speaks of also

Demetallization. Preferably, a method of printing for

Structuring be used. The application and patterning can also be done in a single step, e.g. when an application mask is used.

In a preferred embodiment, a transparent or translucent, semi-transparent (semi-transparent) cover layer is provided on the layer of electrically conductive material. By the transparent or translucent cover layer, the electrically conductive material can be protected and still be ensured that the desired effect of high transparency or high-reflective property is maintained. This also applies conditionally to a translucent, semi-transparent

Top layer.

So far, only relative proportions between the first zones and the second zones have been mentioned. The absolute size of the first zones depends on how the measurement fields of the readout device are set up. With regard to measuring field variables which are customary at the time of application, the at least one first zone in an extension direction should have a smallest dimension of between 2.5 mm to 15 mm. These dimensions also fit with such a measuring field, the putting on or approaching a

Fingertip can capture. However, since measuring fields are becoming smaller and smaller in the future, it is also possible that in the case of the invention

Multi-layer body which has at least one zone a smallest dimension of between 500 μιτι to 2.5 mm. Overall, a range of 0.5 mm to 40 mm makes sense.

The article of the invention, in particular a banknote, a check, a document of identification, a ticket or ticket, a the Counterfeiting protection of commercial goods or products serving element, a card (eg, a game, lottery or promotional card serving) or packaging (eg, a storage box for items, a CD case, a box for medical devices, a container for liquids, eg a wine bottle, a (clothing) tag, a price tag, etc.) has a multi-layer body according to the invention. In the present case, packaging is considered to be a complete package or else a part of a complete package. In the mentioned value documents or

It is particularly important for valuables that they are forgery-proof, so that due to the particular visual effect of the homogenously appearing multi-layered body, which is not considered to be encoded by the information areas, particular care is taken to ensure that the security feature is not readily available is forfeitable. Obtaining a disguising effect on the

Information areas, i. their visual concealing, can also be achieved by a corresponding decorative, in particular graphic design, which does not explicitly have the function of an anti-counterfeiting. Such a properly shaped design can effectively visually hide the information areas without affecting the encoded information.

If the article is a document of value such as a banknote, the multi-layer body is preferably strip-shaped and either applied to a substrate of the banknote (then in particular as a laminate or hot stamping film) or embedded in such a substrate (then as a so-called security thread). The multilayer body may also be patch-shaped, i. in the form of a label or label cover only a part of the banknote substrate or be provided as the banknote substrate over the entire surface covering element. If the article is a packaging, then the multilayer body

preferably attached to an outside of the package or

applied. Likewise, it is conceivable that the multilayer body on a separate or separable component of the packaging is applied.

Examples are e.g. a separate, loose enclosed card or a detachable tab on the packaging. The inventive method for producing a multilayer body is preferably used for producing a multilayer body of the above

described inventive type and comprises the steps:

Providing and / or acquiring dimensions of measuring fields of an input device capacitively acquiring and / or touching an input object

- providing an information content,

Providing a carrier,

- Applying electrically conductive material in such

Arrangement on the carrier, that

at least one first information area is provided, each having a first zone over the entirety of which its electrically conductive material is conductively connected, and wherein the position, size, shape and / or orientation of the first zones and / or a distance between a plurality of first zones is selected to match the dimensions of the measuring fields, that for a (so in terms of) readout using the input device of the information content is encoded, and that

b) is provided in the same layer as the at least one information area, at least one background area having a plurality of second zones, which are galvanically separated from each other, so that when reading the information content of the first zones using the input device, the background area is so distinguished from the information area , that the

Information content of the first zones is detected. In the method according to the invention, a neutral background area is thus additionally provided which does not carry any information that can be detected by capacitive readout. However, it can provide optical information, in particular in the form of a decorative element and / or in the form of an optical security feature such as diffractive or refractive structures. By providing a background region, the electrically conductive material is not only in the at least one

Information area provided, and this electrically conductive material of the background area can then serve to a viewer of the

Distract information area, ideally even as in the preferred embodiment of the multi-layer body to ensure an ultimately homogeneous impression of the multi-layer body.

Preferably, the at least one information area and the

Background area formed differently from each other so that the information area when reading using the input device is at least distinguished from the background area so that the information content of the first zones is detected with high probability correctly. By way of example, the second zones of the background area can also be designed such that they are detected during read-out, but do not significantly impair the detection of the information content of the first zones.

For example, the second zones when reading to a noise, background signal or a so-called noise. However, they are designed so that this noise still allows the acquisition of the information content of the first zones. For this purpose, the second zones may be formed so small, in particular in relation to the dimensions of the measuring fields, that when reading the information content of the first zones using the input device, the background area of the

Input device is not detected.

In this way, a high level of protection against counterfeiting is guaranteed, because for a forger, first, the fact may not even be recognizable, that information is encoded in the information area; and even if a potential counterfeiter knows this, he does not necessarily recognize the coding as such by the formation of the information area in relation to the background area.

In a preferred embodiment, the electrically conductive material is metal, which is first applied over the entire surface and then partially removed. A demetallization process such as mechanical removal, etch-resist etching, wash-masking by means of washcoats, laser ablation, or photoresist coating techniques has proven to be particularly efficient. Metal can also be applied particularly well, e.g. evaporate and has the advantage that it reflects light strongly. For example, the metal can be applied to a, in particular in a lacquer layer shaped relief structure, whereby the thin metal layer follows the contour of the relief structure and thereby increases the visibility of the relief structure as a reflective layer in an advantageous manner. The

Metal layer can be demetallized area-wise after full-surface application as described above, i. area by area are removed. Hereinafter, preferred embodiments of the invention will be described in more detail with reference to the drawing, in which

Fig. 1 is a plan view of a multi-layer body after a first

Embodiment of the invention shows

2a-2d illustrate an enlargement of the detail designated II in FIG. 1 according to different variants, FIG.

FIG. 2e shows a section through the multi-layer body according to FIG. 1, FIG.

FIG. 2f shows a section through a transfer film to form a variant of the multilayer body according to FIG. 1, and FIG a section through this variant of the multi-layer body of FIG. 1 shows the in Fig. 1 with III designated section in enlargement in a variant suitable for the variant of FIG. 2a, the in Fig. 1 with IV designated section matching in magnification in the variant to Fig. 2a and Fig. 3 shows, and an alternative embodiment of the embodiment of Fig. 4a shows a plan view of a multi-layer body according to a second embodiment of the invention, the in Fig. 5 with VI designated section shows in enlargement, and the in Fig. 5 marked VI in accordance with a variant in enlargement, the in Fig. 5 denoted by VII section shows in enlargement, the in Fig. 5 with VIII designated section shows in enlargement,

9 is a plan view of a multi-layer body after a third

Embodiment of the invention shows Fig. 10 shows a modification of the third embodiment of the multilayer body according to the invention in plan view which forms a security element Fig. 1 1 a a banknote with the security element according to Fig. 10 in

Top view shows

Fig. 1 1 b illustrates how a in the banknote of FIG. 1 1 a

contained code can be read using a readout device and

Fig. 12 shows a packaging with the security element according to Fig. 10 in a perspective view. A multilayer body, for example in the form of a multilayer film, is intended to carry capacitively readable information without this information

obviously. In a first embodiment, the information is therefore not visible because the multi-layer body as a whole acts transparent. This embodiment will be described below with reference to Figs. 1 to 4b. The first embodiment has the advantage, for example, that a substrate arranged below the multilayer body is still visible. This effect can be used for example in banknotes or in the

Be used advantageously packaging, so that through the transparent multi-layer body through a decorative

Surface design of the bill or packaging is visible to a viewer. In a second embodiment, the information is therefore not visible because the multi-layer body as a whole almost completely reflects the incident light. This second embodiment will be described below with reference to FIGS. 5 to 8. The construction of both

Embodiments may be provided in a multi-layer body at the same time. A third embodiment, which occupies an intermediate position between the first and the second embodiment, can be realized, but not described in detail here. In principle, therefore, the following three cases can be distinguished:

a) the case where the transparency is so high (very small area occupation with metal), that the multi-layer body appears to be virtually invisible;

b) the case where the transparency is so low and the reflectivity is so high (high surface coverage of metal) that for a viewer only the

Multi-layer body and not the underlying substrate is visible; and c) the case of semi-transparency, in which the transparency is comparatively low (surface coverage of metal about 10% to 30%), so that the underlying substrate is still easy to see. The latter case is often advantageous when the multi-layer body is used in combination with an optical security feature for counterfeit protection. The area occupation with metal is chosen so that the optical security feature appears sufficiently brilliant, because a sufficient metal surface than

Reflective layer is available and at the same time through the optical security feature through the substrate is still visible. A multi-layer body, generally designated by 100, according to the first embodiment of the invention illustrated in FIGS. 1 to 4 b comprises an information area comprising two presently circular first zones 10, which are connected to one another by a connecting line 12. A connecting line 14 leads to an edge region 16, where an electrical connection of the first zones 10 can take place. For example, a

Operator hold the multi-layer body in the edge region 16 and ground in this way.

In the information area electrically conductive material is provided, which is conductively connected over the entire information area. Will the

Multilayer body 100 placed on a touchpad that capacitively detects the approach of an input object (such as a user's finger), then The first zones 10 act at comparable size as fingertips of a user's finger. It is advantageous if the multi-layer body 100 is touched in the edge region 16 by an operator and is connected in this way with this electrically conductive. In this way, a capacitive functionality of the first zones 10 is ensured. Due to the position of the first zones 10 on the multilayer body 100, their spacing and possibly

absolute size is coded in the present case an information that in the

Interaction with an active user program (e.g., applet) is detected and displayed in the reader with the corresponding touchpad. By means of the user program, the coded information is detected and executed a suitable stored action.

Preferably, the circular first zones 10 have a diameter of at least 5 mm and a maximum of 15 mm. Particularly preferred here is a diameter of between 7 mm and 10 mm. In this way a reliable detection can take place. Further preferred is a minimum distance of 4 mm of two zones 10 to each other. Particularly preferably, the minimum distance is 6 mm, most preferably 8 mm. The minimum distance is measured as the shortest edge-to-edge connection of two adjacent zones 10. It is further preferred that the leads 12 and / or 14 have a maximum track width, which then preferably not more than 1 mm, more preferably 500 μιτι , is. That's the way it is

ensures that potentially caused by the leads 12 and 14 interference signals are kept low and do not affect the safe detection of the zones 10.

FIG. 1 shows exactly two zones 10, which are galvanically coupled together via the supply lines 12 and 14 to the edge region 16. This is also a very particularly preferred embodiment. Preferably, no more than three zones 10 are electrically connected to one another via feed lines 12 or 14 and to the edge region 16. In this way a clear spatial distinction of the zones 10 in the resulting detection signal is ensured. The supply line 14 of FIG. 1 is perpendicular to the extension direction of the edge region 16, while the supply line 12 diagonally or obliquely to

Edge region 16 extends. As particularly preferred such

Feeder lines 12 and 14 proved that perpendicular or parallel to

Extension direction of the edge region 16 run.

The information area with the first zones 10 and the

Connecting lines 12 and 14 and the edge region 16 is surrounded by a background area 18 in which no continuous electrical

Conductivity is given. The role of the background area 18 is also to provide electrically conductive material that is the same

Appearance or the same optical effect has as electrically conductive material in the first zones 10 and the connecting lines 12 and 14 and the edge region 16th

The difference between the information area and the

Background area is explained below with reference to FIGS. 2a to 2g and FIG. 3 and FIGS. 4a and 4b:

In order for the multilayer body 100 to act as a whole in a transparent manner, in the region of the first zones 10, electrically conductive material in the form of conductor tracks 40 is provided, which are microscopically small, so that they can not be resolved individually with the human eye. In particular, the printed conductors 40 have a thickness from the range of 1 μm to 40 μm, preferably from the range of 5 μm to 25 μm. Fig. 2a shows a regular pattern of intersecting tracks 40. Fig. 2b shows a regular pattern of wavy tracks 40. These patterns have the advantage that they can be generated very easily in a nearly endless sequence. To prevent diffraction and moiré effects, the connecting lines are preferably not arranged parallel to one another. Here, Fig. 2c shows a variant of the pattern of Fig. 2a, with stochastic deviations in the pattern descriptive parameters are provided locally different, so that the individual tracks 40 are not parallel to each other. Similarly, the pattern of Figure 2d is a variant of the pattern of Figure 2b. Moire effects can arise, for example, by the superimposition of a uniform grid of the metallic interconnects of the multi-layer body with a likewise uniform print pattern on an underlying substrate.

Common to the patterns from FIGS. 2 a to 2 d is that there are a multiplicity of intersection points between the individual conductor tracks, so that the surface conductance which is as uniform as possible is provided.

As can be seen from FIG. 2 e, the electrically conductive tracks 40 are applied in particular to a carrier foil 30. This is preferably a flexible plastic film, for example of polyethylene terephthalate (PET), polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), polyester and / or polycarbonate (PC). This flexible plastic film preferably has layer thicknesses of between 5 μιτι and 300 μιτι, more preferably of between 23 μιτι and 100 μιτι. The carrier film 30 is transparent.

The electrically conductive layer 31 provides the tracks 40 and is preferably made of a metal such as copper, aluminum, chromium, silver or gold. This metal layer is preferably all over in one

Layer thickness of between 10 nm and 5 μιτι, preferably 20 nm and 100 nm, applied to the carrier film 30, in particular vapor-deposited and patterned (so-called demetallization). Alternatively, the metal layer can also be applied in structured fashion to the carrier foil 30 in the form of a metallic lacquer or a conductive paste, in particular printed on it. Between the carrier foil 30 and the electrically conductive layer 31, an adhesion-promoting layer can also be arranged, which improves the adhesion of the electrically conductive layer 31 to the carrier foil 30. Such Bonding layer should then also be formed of a transparent material, such as a transparent paint.

On the first electrically conductive layer 31, a dielectric layer 32 is further applied, which has the function of a cover layer. The dielectric layer 32 is preferably a transparent lacquer which is applied to the electrically conductive layer 31 by means of a printing process in a layer thickness of 1 μm to 40 μm. Optionally, a further electrically conductive layer 33 may be applied to the dielectric layer 32. This can be done by printing an electric

conductive printing material, such as carbon black or conductive silver

be applied.

The electrically conductive tracks 40 may alternatively be applied to a lacquer layer 42. The lacquer layer is preferably provided with a relief structure 44, wherein the thin layer of electrically conductive tracks 40 follows this relief structure. On the electrically conductive tracks 40 more paint layers can be applied. The multilayer body may be in the form of a transfer film which comprises a carrier film 30a, from which a transfer layer 48 can be removed. To bring about the detachability is the

Transfer layer 48 separated from the carrier film 30a via a release layer 46.

In the present example, the transfer layer 48 comprises the lacquer layer 42 with the relief structure, the electrically conductive tracks 40 and an adhesive layer 46 on the electrically conductive tracks.

The transfer film may be formed as a hot stamping foil or cold stamping foil. For transferring the transfer layer 48, the transfer film is brought into contact with the side of the adhesive layer 50 on or onto a substrate 30b. The

For example, substrate 30b may be made of paper (banknote, card or ticket). During the process of embossing, the transfer layer is released at least in the area acted upon by raised regions of the embossing tool because of the embossing process Presence of the release layer 46 of the carrier film 30a. Optionally, in this case, the adhesive is activated by heat or ultraviolet radiation, so that the transfer layer with the adhesive layer 50 adheres to the substrate 30b. The electrical interconnects 40 should be continuously conductive in the first zones 10, so that just in the information area all parts of the electrically conductive layer 31 are galvanically connected to each other. It should be different in the background area 18. The enlarged detail III of FIG. 1 shown in FIG. 3 shows the situation for the variant with the regular

Printed conductors according to FIG. 2a. If, in section II, the conductor track is provided as shown in FIG. 2a, the corresponding one is shown in section III

Circuit pattern continues, but there are regular breaks (column) 20 in the trace pattern, so you just have it with

Conductor parts 22, which are cross-shaped, has to do. It is therefore only to do with the smallest continuously conductive units, which are designated in Fig. 3 with 24 and hereinafter referred to as second zones.

The cross-shaped configuration of the conductor track parts 22 is only an example. The breaks (column) 20 may also be formed in the other conductor patterns regularly or irregularly in any other patterns.

For example, the interrupts may also be provided at the intersections of the tracks in FIG. 3 (instead of between the

Crossing points). It is also possible for a separate demetallization pattern to be superimposed on the printed conductor pattern. In the transition region between the information area and the background area shown in FIG. 4a (see detail IV in FIG. 1), it can be seen that the same pattern of the tracks is based both in the information area and in the background area, and only by the interruptions 20 is the galvanic Separation of the individual second zones 24 given, whereas the entire information area is continuously conductive. Instead of the individual printed conductor 14, which is shown in FIG. 4 a, it is also possible to provide a plurality of printed conductors, see the three printed conductors 14 a, 14 b and 14 c shown in FIG. 4 b. In case of damage and interruption of one of the conductor tracks, for example the conductor track 14b, the electrical connection of the edge area 16 is then ensured by the remaining two conductor tracks, eg 14a and 14c, due to redundancy. The interconnects 14a to 14c are shown only in terms of their spacing by way of example. Their distance from one another can also be considerably greater, in particular. The multi-layer body 100 from FIGS. 1 to 4b is overall transparent because the carrier foil 30 and the dielectric layer 32 are transparent, the

Conductor tracks by the human eye not individually resolvable and the interconnects are sufficiently spaced apart, so that a small area occupancy is realized with traces. Because of that

Background area 18 substantially almost immediately, only by a small gap with dimensions of at most 150 μιτι of the

Information area separated, adjoining the information area and provided by a similar pattern, the transparency (in particular transmissivity) of the entire multi-layer body 100 hardly varies over its area. If, for example, an area of 200 μιτι times 200 μιτι at a distance of the tracks 40 of 40 μιτι to each determine a mean area occupation, then varies this average area occupation, starting from a basic value over the entire multi-layer body 100 only by at most 25%.

In the second embodiment of the multi-layer body, the effect is to be achieved that this shines metallic. Metal is therefore provided here particularly over a particularly large area, and in the layer structure according to FIG. 2e, instead of the conductor tracks 40, a continuous metal layer of one of the abovementioned metals is provided, which is interrupted only in regions. 5 shows a plan view of such a second embodiment of the multilayer body 200 with the same geometry as in the multilayer body 100. In this case, for reasons of representability, metallized areas are shown in white, and non-metallized areas in black. This inverted representation is also selected in FIGS. 6a, 6b, 7, 8, 9, 10 and 11a (but not 11b) and 12.

FIG. 6a shows the embodiment in a region of a first zone indicated by VI in FIG. 5: Here, metal is provided throughout in the presently square cutout, so there are no interruptions in the first zone. In the variant of FIG. 6b is in the first zone 10 in respective

In the present case, square portions 26 are provided over the entire area of metal, and in between there is a series of interruptions 28 with conductive

(metallic) webs 34 in between.

In the background area 18 in a region marked VII in FIG. 5, the pattern shown in FIG. 7 is now provided: There are second zones 26 which are square and are separated from each other by continuous partitions 36.

In this way, it is ensured that the areas VI and VII appear visually similar to a viewer.

In particular, the separations 36 include a complete disruption of the metallic layer, such as by appropriately patterning the metal layer by known patterning techniques, e.g. Etching process or washcoat process or laser ablation or mechanical removal or exposure process can be caused. These are gaps which are not resolvable to the human eye and

For example, a width in the range of 1 μιτι to 40 μιτι, preferably from the range of 5 μιτι to 25 μιτι, may have. 7, the meaning of the embodiment according to FIG. 6b becomes apparent: The regular pattern in the background area continues, in a certain respect, also in the information area, so that the multi-layer body 200 acts uniformly overall. However, depending on the size of the interruptions or gaps 36, the same effect can also be achieved in the variant from FIG. 6a.

Decisive here again is the area occupation, defined as the area occupied by metal within a predeterminable surface area of the total area A divided by this total area A. This area occupancy is in the

Background area and in the information area substantially the same, so that the same visual impression is achieved.

In FIG. 8, matching with FIG. 7 and with the variant according to FIG. 6 a, the detail VIII from FIG. 5 is shown enlarged. The interconnect 14 shown in FIG. 8 in contrast reversal connects the full-area contacting region 16 at the edge of the multilayer body 200 to the first two zones 10.

Between the conductor 14 and the background area 18 is a gap 38 which has a width of at most 150 μιτι and therefore is not visible to the human eye. By varying the size and pattern of the first zones 10, more complex information can be encoded in the multilayer body. This can be seen below with reference to the multi-layer body 300 of FIG. 9, where a circular zone 10a, a square zone 10b and a triangular zone 10c can be seen as the first zone, which are galvanically coupled together by connecting lines 12 and through conductive lines 14 to respective conductive lines Edge regions 16a, 16b, 16c are connected.

In the exemplary embodiment of FIG. 9, all edge regions 16a, 16b and 16c are galvanically coupled to all zones 10a, 10b and 10c. Alternatively, however, it may also be provided that the respective edge regions 16a, 16b and / or 16c are only galvanically connected to a subset of the zones 10a, 10b and 10c. For example, it can be provided that the left edge area 16c is electrically connected exclusively to the zone 10c via a conductor track 14 and has no galvanic coupling to the zones 10a and 10b. In that case, provision may further be made for the zones 10a and 10b to be galvanically coupled to one another via a connecting line 12 and also to the lower edge area 16b and the right-hand edge area 16a. If a user holds the multilayer body 300 only in the left edge area 16a, only a first information area formed by the zone 10c is capacitively active. If, on the other hand, he holds the multilayer body 300 only in the lower edge area 16b and / or the right edge area 16a, only a second information area formed by the zones 10a and 10b is active. In this way, a multi-layer body 300 can be provided which, depending on in which edge area it is held by the user, different information by means of the respective active

Provides information areas.

In a modification of the embodiment according to FIG. 9 it can be provided that all first zones are rectangular, preferably square. In this case, it is particularly preferred if the edges of the rectangles or squares parallel or perpendicular to the direction of extension of

Edge regions 16a, 16b, 16c extend, in particular the same

Course of the respective edge is. Then it is possible the

Multilayer body (located on an object such as a card)

align accordingly to a reader. This is especially true if it is a reading device with a touch panel functionality, which has so-called sensor cells, which in turn are rectangular or square. If the reader is fixed in advance, the shape of the first zones 10 may be selected to match the sensor cells thereof.

Furthermore, it is particularly preferred if the shown in Fig. 9

Supply lines 12 omitted and only the leads 14 are available. Then, each of the zones 10a, 10b and 10c has exactly one edge area, namely the Edge regions 16a and 16b and 16c, galvanically connected. It then proves to be advantageous that all leads 14 at right angles to

Extending direction of the associated edge regions 16 run. 10, in a multilayer body 400, a plurality of first zones 10a in the form of a circle of a first size and 10d of a second size, which are connected to one another by connecting lines 12 and are connected to a peripheral area 16 via a connecting line 14. In the present case, in particular, we have to do with a mixed design of the two embodiments according to FIGS. 1 to 4b on the one hand and FIGS. 5 to 8 on the other hand: While the larger portion of the multilayer body 400 shown in FIG. 10 has a reflective design and therefore, as with reference to FIGS 8 is formed, the edge region 16 is transparent and has the properties as described above with reference to FIGS. 4a / b.

The multi-layer body 400 from FIG. 10 may in particular be strip-shaped and arranged as a security strip on a value document such as a banknote 1000 (see FIG. 11a), a ticket, a ticket or an admission ticket. The coding provided by the first zones 10a and 10d can be read out by placing the banknote 1000 on a reading device 2000, here shown in the form of a smartphone. A user grasps the banknote here at the edge region 16, which does not itself rest on the measuring fields of the touchpad of the smartphone. Only the first zones 10a and 10d are on the touchpad. In the Smartphone 2000, an application program (applet) is capable of providing a capacitive

Detecting interaction between the first zones 10a, 10d and the measurement fields, so that the effect is achieved as if a touch would be made by user fingers on corresponding sub-areas. In the same way as information can be entered by the contact of certain areas, in the present case an item of information can be read out by placing the banknote 1000. The embodiment of FIG. 10 shows three zones 10, which are electrically connected via partially diagonal leads 12 to the edge region 16. According to the above, here is an analog

Embodiment particularly preferred in which only two zones, e.g. the zones 10a and 10d, are present, and are connected to one another via a feed line 12 such that this feed line 12 is perpendicular or parallel to the

Extension direction of the edge region 16 extends. Preferably, this supply line 12 and the supply line 14 has a maximum width of 1 mm. The zones 10a and 10d are then further preferably at least 4 mm apart. In the case of the illustrated circular shape of the zones 10a and 10d, these then preferably each have a diameter of at least 5 mm, so that the distance of the zones 10a and 10d - now based on their circle center - is at least 9 mm. The circular shape of the first zones approximately according to FIG. 10 has the advantage that the multi-layer body with such circular first zones 10 can stand at any angle to a readout device and does not have to be aligned with its sensor cells. One then takes however smaller signal heights if necessary in purchase.

In the case of the banknote 1000, the multilayer body 400 in the form of a film element fulfills two main functions:

a) the capacitively encoded information may include, for example, the face value of the banknote, the issue date or the issuing country; and

b) Authentication indicates that the security element is present and authentic. These functions are particularly useful for the blind and visually impaired, as they allow them to identify banknotes in their daily lives and check their authenticity. Particularly in the case of the embodiment according to FIGS. 5 to 8, there are larger metallic surfaces which can be provided with a surface relief structure, by which in particular an optically variable device can be provided. Such an optically variable device exhibits a visual second information that can complement the information provided or encoded by the first zones. For example, in the case of the banknote 1000 from FIG. 11a, an optically variable device may be provided on the multilayer body 400, which shows a number as a picture, the coded information also being reproduced as a number by the user program.

If the displayed number and the number displayed match, then you can be sure that there is no counterfeiting of the banknote 1000.

Instead of a number, graphic motifs or graphic motif parts, individual parts of words, whole words, phrases or whole sentences can also be reproduced. The first and the second information also do not necessarily have to match, but can also be complementary. That's the way it works

For example, be cause that the user program causes that when placing the banknote 1000 with the multi-layer body 400 on the smartphone 2000 a specific Internet address is called, on which the image is stored, which also shows the optically variable device. In this way, a particularly high security against counterfeiting can be ensured.

In the case of the packaging 3000 shown in FIG. 12, which serves, for example, for receiving valuable medicaments or other pharmaceutical products, or else tobacco products, the multi-layer body 400 from FIG. 10 is adhesively bonded over the corner. As a result, it is possible to place a smartphone (not shown in FIG. 12) on the upper side 52 of the packaging 3000, where the first zones 10a and 10d are provided. Meanwhile, the user can do the

Touch edge region 16 on the side wall 54 and thereby ground the first zones 10a and second zones 10d (and so the information area in total).

As already explained with reference to FIG. 1 1 b, the multilayer body 400

Encoding information, such as information corresponding to a bar code (for product identification), a date of manufacture and / or an expiration date. In addition to this function of providing the coded information, the authentication additionally indicates that a security element (as the multi-layer body 400 is formed) is present and authentic. Again, the two functions for the blind and visually impaired are of great use to verify the authenticity of the packaging and thus also the included goods.

For persons who can see sufficiently well, here again an application program can be provided in a smartphone, which guides the user to an Internet address or a program, through which or more information about the goods in the packaging is given. Again, the information on optical

Relate security elements, in particular an optically variable device on the multi-layer body 400.

While FIG. 12 illustrates that the multi-layer body 400 is glued over a corner, other types of application are possible, such as application to a flat surface, application to a curved surface, and application over two more corners.

Claims

claims

1 . Multilayer body (100, 200, 300, 400) comprising a support (30) and a layer (31) arranged thereon, which comprises electrically conductive material in such an arrangement that

- at least one information area and at least one

Background area (18) are provided, wherein the at least one information area on the one hand and the at least one background area on the other hand are electrically isolated from each other, wherein

- In each information area, a first zone (10, 10a, 10b, 10c, 10d) is provided with electrically conductive material over their entirety, their electrically conductive material is conductively connected, and wherein - In each background area, a plurality of second zones (24, 26) is provided with electrically conductive material, wherein the second zones are galvanically separated from each other.

Multilayer body (100, 200, 300, 400) according to claim 1,

characterized,

in that at least one first zone (10, 10a, 10b, 10c, 10d) occupies a larger area than each of the second zones by a factor of at least two, preferably at least five, more preferably at least ten, most preferably at least 30.

Multilayer body (100, 200, 300, 400) according to claim 1 or 2, characterized

in that the electrically conductive material is provided with an average surface coverage which varies by less than 25% over all information areas and background areas (18), preferably by less than 10%, more preferably by less than 5%, the average area coverage being Partial surfaces is calculated, each having the same predetermined size, either 500 μιτι times 500 μιτι or 300 μιτι times 300 μιτι or 250 μιτι times 250 μιτι or 200 μιτι times 200 μιτι or 150 μιτι times 150 μιτι or 100 μιτι times 100 μιτι amounts

Multilayer body (100) according to one of claims 1 to 3,

characterized,

in that in at least a part of the first zones (10) of the electrically conductive material a plurality of conductor tracks (40) is formed, which have a width from the range of 1 μιτι to 40 μιτι, preferably from the range of 5 μιτι to 25 μιτι and arranged in patterns.

Multilayer body (100) according to claim 4, characterized,

in at least two of the second zones and preferably each second zone of the electrically conductive material conductor track parts (24) are formed, which have a width in the range of 1 μιτι to 40 μιτι, preferably from the range of 5 μιτι to 25 μιτι have, and galvanically separated from trace portions (24) of another of the second zones via a gap (20) of a length which is between 50% and 200% of the width of the trace portions.

Multilayer body (100) according to Claim 5,

characterized,

in that the printed conductors (40) from each information region have the same first width and the printed conductor parts (24) from each background region have the same second width, wherein the first and the second width differ from one another by at most 30% of the respective greater value and are preferably the same ,

Multilayer body (100) according to claim 5 or 6,

characterized,

that at least in some of the second zones, two conductor track parts (24) overlap.

Multilayer body (100) according to one of claims 4 to 7,

characterized,

in that conductor tracks (40) of an information area are each assigned a track portion of a background area (18) from which they are separated by a gap of a width lying between half and ten times the width of the conductor tracks.

Multilayer body according to one of claims 1 to 8,

characterized, in that at least one information area in accordance with a first pattern and flat, linear and / or punctiform areas without conductive material are formed in at least one background area according to a second pattern different from the first pattern, wherein the first area, line-shaped and / or point-like areas are formed without conductive material and / or second pattern is formed in particular by a statistical distribution of small, transparent and non-conductive dot-shaped region. 10. Multilayer body (200) according to one of the preceding claims, dadu rch gekennzeich net,

in that one or more of the second zones (26) are each covered over the entire surface with electrically conductive material. 1 1. Multilayer body (200) according to claim 10,

characterized,

one or more of the first zones (10) are covered over the entire surface with electrically conductive material, so that a closed region is provided.

12. multilayer body (200) according to claim 10 or 1 1,

characterized,

in that one or more of the first zones (10) comprises subregions (26) which are covered over the whole area with electrically conductive material and which are galvanically coupled to one another via conductive webs (34).

13. multilayer body (200) according to any one of claims 10 to 12,

characterized,

in that a second zone covered with electrically conductive material over its entire surface is separated by a gap which is not wider than 150 μm by a first zone or a partial zone of the first zone completely occupied by electrically conductive material. Multilayer body (200) according to one of the preceding claims, characterized in that

the electrically conductive material represents a layer of an optical security feature and / or performs a function of an optical security feature, such that the multilayer body is an optically variable device, preferably a microstructure in the form of a linear or crossed sine or rectangular diffraction grating of a zero-order diffraction structure includes 2D / 3D or SD hologram, a Kinegram ^®, a trust Seal ^®, a colored or achromatic blaze grating, an isotropic or anisotropic matt structure, a microlens structure, a macro-structure, a thin film color change system and / or the like. 15. multilayer body (200) according to claim 14,

characterized,

a first information is coded by the position, size, orientation and / or shape of all first zones and / or the distance of a plurality of first zones from one another, and wherein a visual second provided by the optical security feature

Information with the first information partially or completely matches or supplements this first information to a total information. 16. Multilayer body according to one of claims 10 to 13 or according to one of claims 14 and 15 in the back refer to the claim 10,

marked by

a provided over and / or under the electrically conductive material ink layer or effect layer, preferably such that in combination with the electrically conductive material a characteristic design, in particular gives a characteristic motif.

Multilayer body according to one of the preceding claims, characterized in that

in that it has an additional, in particular full-surface, nonconductive reflection layer, wherein this additional reflection layer is preferably formed from HRI materials.

Multilayer body (100, 200, 300, 400) according to one of the preceding claims,

characterized,

a background area (18) completely surrounds all information areas.

Multi-layer body (100, 200, 300, 400) according to one of the preceding claims with exactly one information area.

Multilayer body (100, 200, 300, 400) according to one of the preceding claims,

characterized,

an information area comprises a plurality of first zones (10, 10a, 10b, 10c, 10d) which are galvanically coupled to one another by at least one conductor track.

Multilayer body (100, 200, 300, 400) according to one of the preceding claims,

characterized,

in that at least one of the group of silver, copper, gold, aluminum, chromium, mixtures and / or alloys of the abovementioned materials, an electrically conductive paste, polyaniline and polythiophene is selected as the electrically conductive material. Multi-layer body (100, 200, 300, 400) according to one of the preceding claims with a transparent cover layer, in particular a dielectric layer (32) on the layer (31) with the electrically conductive material.

A multilayer body (100, 200, 300, 400) according to any one of the preceding claims, wherein at least a first zone (10, 10a, 10b, 10c, 10d) has a dimension of between 2.5 mm to 15 mm in an extension direction.

Article (1000, 3000), in particular packaging or packaged goods, banknotes, checks, credit cards, identity documents, driving or admission tickets, tags, playing cards, or security elements for identifying a product with a brand name, comprising a multilayer body (400) according to one of the claims 1 to 23.

Banknote (1000) having a substrate and a strip-shaped multilayer body (400) according to any one of claims 1 to 23, which is applied as a security element on the substrate or embedded as a security thread in the substrate.

Packaging, in particular for pharmaceutical product or cigarettes, or packaged goods, the packaging or the packaged goods comprising a multilayer body (400) according to one of Claims 1 to 23, which is applied to a surface (52, 54).

27. A method for producing a multilayer body (100, 200, 300, 400), in particular a multilayer body according to one of claims 1 to 23, with the steps: Providing and / or acquiring dimensions of measuring fields of an input device which capacitively detects an approach and / or contact of an input object,

- providing an information content,

Providing a carrier,

- Applying electrically conductive material in such an arrangement on the carrier, that

at least one first information area is provided, each having a first zone (10, 10a, 10b, 10c, 10d), over the entirety of their electrically conductive material is conductively connected, and wherein the position, size, shape and / or orientation of all first zones and / or a distance between a plurality of first zones is selected to match the dimensions of the measuring fields, that for reading by means of the input device, the information content is encoded, and that in the same layer (31) as the at least one information area at least one background area (18 ) having a plurality of second zones (24, 26) which are galvanically separated from each other such that when the information content of the first zones is read by the input device, the background area is distinguished from the information area such that the information content of the first zones is detected.

Method according to claim 27,

characterized,

that the electrically conductive material is metal, which is first applied over the entire surface and then partially removed.